132561073 has 4 divisors (see below), whose sum is σ = 133927780. Its totient is φ = 131194368.

The previous prime is 132561071. The next prime is 132561089. The reversal of 132561073 is 370165231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370165231 = 809 ⋅457559.

It can be written as a sum of positive squares in 2 ways, for example, as 53919649 + 78641424 = 7343^2 + 8868^2 .

It is a cyclic number.

It is not a de Polignac number, because 132561073 - 2¹ = 132561071 is a prime.

It is a super-2 number, since 2×132561073² = 35144876149822658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132561071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683208 + ... + 683401.

It is an arithmetic number, because the mean of its divisors is an integer number (33481945).

Almost surely, 2^132561073 is an apocalyptic number.

It is an amenable number.

132561073 is a deficient number, since it is larger than the sum of its proper divisors (1366707).

132561073 is an equidigital number, since it uses as much as digits as its factorization.

132561073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366706.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 132561073 is about 11513.5169691976. The cubic root of 132561073 is about 509.8847272475.

The spelling of 132561073 in words is "one hundred thirty-two million, five hundred sixty-one thousand, seventy-three".